| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 4Q21 | 485,012 | -24.8% |
| 3Q21 | 448,585 | +7.2% |
| 2Q21 | 421,106 | +4.5% |
| 1Q21 | 401,287 | -4.2% |
| 4Q20 | 645,348 | +57.0% |
| 3Q20 | 418,637 | +4.9% |
| 2Q20 | 402,814 | +3.0% |
| 1Q20 | 418,971 | +11.8% |
| 4Q19 | 411,151 | +2.2% |
| 3Q19 | 399,021 | +2.8% |
| 2Q19 | 391,147 | +6.0% |
| 1Q19 | 374,761 | -5.6% |
| 4Q18 | 402,420 | +3.5% |
| 3Q18 | 388,244 | +0.8% |
| 2Q18 | 368,960 | -2.4% |
| 1Q18 | 396,944 | +10.1% |
| 4Q17 | 388,779 | -0.6% |
| 3Q17 | 385,296 | -2.9% |
| 2Q17 | 377,944 | +1.3% |
| 1Q17 | 360,471 | -4.7% |
| 4Q16 | 390,981 | +1.9% |
| 3Q16 | 396,774 | -3.7% |
| 2Q16 | 373,097 | -7.0% |
| 1Q16 | 378,072 | -2.6% |
| 4Q15 | 383,583 | -6.3% |
| 3Q15 | 411,863 | +7.1% |
| 1Q15 | 400,968 | +0.5% |
| 1Q15 | 388,287 | +3.4% |
| 4Q14 | 409,547 | -4.3% |
| 3Q14 | 384,553 | -1.1% |
| 2Q14 | 398,966 | +5.4% |
| 1Q14 | 375,456 | +1.0% |
| 4Q13 | 428,143 | +11.3% |
| 3Q13 | 388,809 | +4.3% |
| 2Q13 | 378,643 | +1.0% |
| 1Q13 | 371,739 | +0.5% |
| 4Q12 | 384,754 | -5.5% |
| 3Q12 | 372,654 | -1.5% |
| 2Q12 | 374,998 | +3.0% |
| 1Q12 | 369,917 | - |
| 4Q11 | 407,205 | - |
| 3Q11 | 378,205 | - |
| 2Q11 | 364,114 | - |